您要查找的是不是：
- A visible mark, such as a footprint, made or left by the passage of a person, an animal, or a thing. 痕迹因人、动物或物体通过造成或留下的一可见记号，如脚印
- A movable, visible mark used to indicate the position at which the next operation willoccur on a display surface. 一种可移动、可见的标识,用来指示下一个操作要在显示表面上出现的位置。
- The pilot reports bad visibility over the airport. 飞行员向机场报告能见度很低。
- He vainly tried to mark the defacing stain out. 他试图除去有损外观的污迹，但没有成功。
- Black smog reduced visibility to about fifty yards. 黑色的烟雾使能见度降到大约五十码左右。
- Visibility was down to 100 metres in the fog. 大雾中能见距离已降至100米。
- Her school work isn't quite up to the mark. 她的功课不大符合要求。
- That was just a lot of hot air what Mark said. 马克所说的不过是一大堆空话。
- War has left its mark on the country. 战争给该国留下了不可磨灭的痕迹。
- The public scandal left a black mark on his career. 这一尽人皆知的丑闻给他的事业留下了污点。
- How much do you know about the works of Mark Twin. 马克。吐温写的作品你知道多少？
- Happy anniversary, Helen and Mark! 海伦、马克，祝你们结婚周年快乐！
- Mark and Barbara are going together now. 马克与巴巴拉现在正在谈恋爱。
- Mark has lost his job and is worse off than ever. 马克的工作丢了，情况比以前更糟。
- Dense fog is covering roads in the north and visibility is very poor. 浓雾笼罩了北部的公路，能见度很低。
- He rubbed out the mark on his book. 他把他书上的记号擦掉了。
- Has she ever written a letter to Mark? 她曾经写信给马克吗？
- Everyone knows Tom as an easy mark. 大家都知道汤姆是个容易上当受骗的人。
- Do you feel up to the mark this morning? 今天早上你觉得怎么样。
- An executive with high visibility. 有很大吸引力的总经理
